Why do you think the neem tree did not fall despite the strong wind?

Abdul on seeing a tree surrounded by cemented ground, thought that how will it get rain water? 

Abdul wondered whether radish was a root. Why did he think so?

On putting water in the soil where the plants are growing, the dropping leaves become fresh again. How?

After three days, Abdul saw that one broken part of the pea plant had dried. Guess which part would have dried up? Why?

The stick which was stuck in the ground fell very easily. It was difficult to pull out a small grass. Why?